export interface FunctionGroup {
    name: string;
}
export interface FunctionGroups {
    /** Number of built-in groups Excel reserves before user entries (default 16). */
    builtInGroupCount?: number;
    groups: FunctionGroup[];
}
export declare const makeFunctionGroup: (name: string) => FunctionGroup;
export declare const makeFunctionGroups: (opts?: Partial<FunctionGroups>) => FunctionGroups;